Atomic Structure-Quantum Mechanical Model of Atom (NEET Chemistry): Questions 1 - 2 of 2

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Question number: 1

» Atomic Structure » Quantum Mechanical Model of Atom

MCQ▾

Question

The minimum energy required overcoming the attracted forces between electron and surface of Ag metal is 7.52 x 10-19 J. What will be the maximum K. E. of electron ejected out from Ag which is being exposed to U. V. light of λ = 360 Å

Choices

Choice (4) Response

a.

67.68 x 10-19 Joule

b.

6.96 x 10-19 Joule

c.

57.68 x 10-19 Joule

d.

36.38 x 10-19 Joule

Question number: 2

» Atomic Structure » Quantum Mechanical Model of Atom

MCQ▾

Question

In hydrogen, an electron in its normal state absorbs two times of the energy, as it requires escaping (13.6 eV) from the atom, the wavelength of the emitted electron will be -

Choices

Choice (4) Response

a.

2.34 x 10-10 m

b.

3.46 x 10-10 m

c.

4.44 x 10-10 m

d.

1.34 x 10-10 m

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